Furnace.



W. C. WILBUR.

FURNACE.

APPLIOATION FILED NOV. 2, 1908. 93 1 ,663. Patented Aug. 17, 1909. 4 SHEETS-SHEET 1.

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altozwmg avwomto'a I W. 6.. WILBUR,

FURNACE.

Patented Aug. 17, 1909.

4 SHEETS-SHEET 2.

WILLIAM C. WILB UR, OF

CHARLESTON, SOUTH CAROLINA, ASSIGNOR TO THE LI B'BEY G LASS COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

FURNACE No. ee1,ees.

Application filed November 2, 1908.

Specification of Letters Patent.

Patented Aug. 17, 1909.

Serial No. 460, 669.

T 0 all whom it Be it I citizen of may comer v l' ll-QLIAM C. ll imi'cn, States, residing at rnty'of Cher] ston end 'XOlfl? have invented cerl useful linpreveinents in nnees, of which the following a speciici tion.

new and. and perthe Old 00f of produce s. eh o furnace truction, economical I invention relates to certsin useful l1'l-Pl""YOD1011l'S in turns. ti uiarly hos furnaces, and invention is to L i which is simple i1 co he cost of n 11.- c 1 an and nioint i ice, end one in w he. 7. :iial such or instance as glass can ed for any purpose with in which it V! l porlet coon-oi l A -w l.

is in the irlillilue.

ohyect-s in View illClllOll-S,

t in

e. is 2 ii tion may i; chamber 2,

ted in any other round 110st desirable.

Centrally mounted on the door of the 1 1.11 114.86 is a has 1 plate 3, said plate heing secured to the floor by the bolts 4, or other suitehle SQOUl'lLg lll'PtLS. Supported on top of t 1e plate 3 is e hloc i: erahly,

th sake of construction. 5 is a. plate 6 located in the the block 5 t e 5 which l)1'l and as sno-vn, is made hollow for e lightness and chezrpness ti on top of the hlcl the lower end of which is roteteh mounted ii the hearings 7. The shef of i s ends has first theree 1 vheel 10 meshing with worm l hit 12, mounted in )1 the under side of o uhv- 1 l in the side walls i t iu LZCC, and prefershly anchored therein. On the upper sur noee 0] means of the bolts or other suit-- :tlJ-lO securing: 1110; 11s. This 1 with a cup-shaped heer ii and is cei'itrelly horet upper bearing for the in t 1. z carries on its upper surface the rin, 9 forms a track and which is suit-e to the ring; 14, as by nesns of the screws is a table provided with the downwardly projecting hub 25 which rests in the hearings 2 To the center 0 the huh 25 the upper end of the shaft 9 is secured in the portion 26 of the huh.

2'7 2?, are e. pair of rings, one located within the other and projecting downwardly from the under side of the ti lilo and between which are mounted the hearing; rolls 28 by means of the bolts These hearing rolls run on the track 22 and support the outer portion of the table.

The table is provided with the peripheral flange 30, whereby the refractory cover 31 is supported on the tabl upon which is supported the material to he heated.

32 is a cylinder supported on the table and projecting upwardly from the center thereof, said cylinder operating to prevent drafts through the furnace.

In the form of my invention shown, 33 is the opening into the furnace through which the material to be hosted is placed upon the revolving table, and is the opening through which the material is removed otter being heated. It is evident that if the table is rotated in the opposite direction the material is placed on the table through the opening 34 and removed through the opening 33.

35 is a refractory wall which separates the openings 33 and 34, the wall extending into the furnace and making close contact with the cylinder 32 at one side thereof, whereby the draft through the furnace is further prevented, and by means of which the material on the table may be removed by coming in contact with the wall 35 and, through the rotation of the table, swept off the table onto the floor of the openings 34.

It is sometimes desirable to have the ma terial rotate on the table 24 while the same is in the furnace, and in order to effect this I may provide the table 24 with a series of suports 42 mounted on the upper end of spindles 43 which extend through bearings 44 in the under side of the table. The spindles at their lower ends carry gears 45 which mesh with the gear teeth &6 cut on the edges ofthe ring 22. As shown the rotary supports are arranged in two series on the table, one with in the other, and the gears 45 of the outer series mesh with the teeth on the outer edge of the ring 22 while the gears of the inner series of supports mesh with the teeth on the inner side of the ring. It is to be of course understood that where the character of the material is such that it does not need to be revolved independently of the table, these rotary supports are omitted when the table may be made solid.

In the operation of my furnace after the same has been heated to the desired temperature, the shaft 12 is driven by power applied to the pulley l7, and through the worm 11 and gear 10 the shaft 9 is rotated, thus rotating the table 24. The material to be heated can now be introduced through the opening 33 and placed upon the revolving table. At the conclusion of a single revolution the material is delivered through the opening 34 being swept off the table by the partition 35, if

it has not been previously removed by hand. The length of time the material is in the furnace is automatically controlled by the speed at which the table is rotated, and at a given speed all pieces of the material are allowed to remain in the furnace approximately the same length of time.

I realize that considerable variation is pos sible in the details of construction and arrangement of parts without departing from the spirit of my invention, and I therefore do not intend to limit myself to the specific form shown and described What I claim as new and desire to secure by Letters Patent is- 1. A furnace provided with a shaft vertically mounted therein, a table secured to the upper end of the shaft, a drive shaft extending through the wall of the furnace and connected to the vertical shaft whereby the table may be rotated at a constant speed, the wall of the furnace being provided with a receiving and a delivery opening, a partition supported on the wall of the furnace, projecting into the furnace over the table and separating said openings, and a cylinder centrally located on the table and extending up nearly to the roof of the furnace, whereby material to be heated will remain in the furnace a length of time dependent solely upon the speed of rotation of the table.

2. A furnace having a ring supported in its walls, a central hub supported from the ring, a table having a part supported in the hub, a vertical shaft supported at its lower end in a suitable bearing with its upper end passing through the hub and secured to the part of the table supported in the hub, and means extending through the wall of the furnace for driving the shaft whereby the table may be rotated.

3. A furnace having a ring supported in its walls, a central hub supported from the ring, a table having a part supported in the hub, a vertical shaft supported at its lower end in a suitable bearing with its upper end passing through the hub and secured to the part of the table supported in the hub, means extending through the wall of the furnace for driving the shaft whereby the table may be rotated, a track supported on the ring and anti-friction devices mounted between the table and traclz.

4. A furnace having a ring supported in its walls, a circular track mounted upon said ring, one of the edges of said track being provided with gear teeth, a shaft vertically mounted within the track, table secured to the shaft, means for driving the shaft, a series of shafts extending vertically through the table and carrying supports at their upper ends, the lo er ends of the last mentioned shaft being each provided with a gear meshing with the teeth on the traclz, said table being supported by said track.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM C. lYlLBUR.

il itnessesz FRANCIS M. PHELPS, E. L. WHITE. 

